Y Combinator Startups

Startups funded by Y Combinator that have been publicly announced and still have functional websites.

165 of 5,025 sites · synced from the official YC API · rank is the average of Tranco, Majestic and Umbrella; Radar and CrUX shown for context · all 5 are flawed, that's the point. · tap a row for the breakdown

Notes:all

’05–’09S05 · W06 · S06 · W07 · S07 · W08 · S08 · W09 · S09

’10–’14W10 · S10 · W11 · S11 · W12 · S12 · W13 · S13 · W14 · S14

’15–’19W15 · S15 · W16 · S16 · W17 · S17 · W18 · S18 · W19 · S19

’20–’24W20 · S20 · W21 · S21 · W22 · S22 · W23 · S23 · W24 · S24 · F24

’25–’27W25 · S25 · F25 · W26 · S26 · F26 · W27

P25 · P26

W25 · 165 sites · ← all sites

165 sites, including 6 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

afterquery.com156,852 avg · W25▼ 991156,852156,852top 200k———Jul 31

Tranco 156,852Radar top 200kCrUX —Majestic —Umbrella —checked Jul 31

mastra.ai229,551 avg · W25▲ 7,892229,551327,047top 500ktop 1M132,055—Jul 31

Tranco 327,047Radar top 500kCrUX top 1MMajestic 132,055Umbrella —checked Jul 31

axiom.trade251,104 avg · W25▲ 20,879251,10414,446top 10ktop 50k277,239461,628Jul 31

Tranco 14,446Radar top 10kCrUX top 50kMajestic 277,239Umbrella 461,628checked Jul 31

asteroid.ai280,374 avg · W25▲ 64,885280,374376,906top 200k——183,842Jul 31

Tranco 376,906Radar top 200kCrUX —Majestic —Umbrella 183,842checked Jul 31

athenahq.ai294,470 avg · W25▲ 6,486294,470251,179top 200k—293,470338,762Jul 31

Tranco 251,179Radar top 200kCrUX —Majestic 293,470Umbrella 338,762checked Jul 31

browser-use.com297,899 avg · W25▼ 13,040297,89996,526top 50ktop 1M104,777692,395Jul 31

Tranco 96,526Radar top 50kCrUX top 1MMajestic 104,777Umbrella 692,395checked Jul 31

confident-ai.com343,683 avg · W25▲ 15,166343,683482,943——204,423—Jul 31

Tranco 482,943Radar —CrUX —Majestic 204,423Umbrella —checked Jul 31

adam.new447,640 avg · W25▼ 5,240447,640—top 1M—447,640—Jul 31

Tranco —Radar top 1MCrUX —Majestic 447,640Umbrella —checked Jul 31

getswerve.com522,391 avg · W25▼ 197522,391245,180top 200ktop 500k—799,601Jul 31

Tranco 245,180Radar top 200kCrUX top 500kMajestic —Umbrella 799,601checked Jul 31

onlook.com580,621 avg · W25▲ 21,002580,621———580,621—Jul 31

Tranco —Radar —CrUX —Majestic 580,621Umbrella —checked Jul 31

misprint.com602,577 avg · W25▼ 75,423602,577602,577top 500k———Jul 31

Tranco 602,577Radar top 500kCrUX —Majestic —Umbrella —checked Jul 31

solidroad.com669,543 avg · W25▼ 4,305669,543———669,543—Jul 31

Tranco —Radar —CrUX —Majestic 669,543Umbrella —checked Jul 31

a0.dev808,960 avg · W25▼ 134,067808,960926,296top 1M—656,860843,724Jul 31

Tranco 926,296Radar top 1MCrUX —Majestic 656,860Umbrella 843,724checked Jul 31

societies.io872,324 avg · W25▲ 108,449872,324———872,324—Jul 31

Tranco —Radar —CrUX —Majestic 872,324Umbrella —checked Jul 31

vantel.com874,442 avg · W25▼ 10,242874,442874,442————Jul 31

Tranco 874,442Radar —CrUX —Majestic —Umbrella —checked Jul 31

bild.ai942,283 avg · W25▼ 13,529942,283———942,283—Jul 31

Tranco —Radar —CrUX —Majestic 942,283Umbrella —checked Jul 31

10xdental.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

a1zap.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

agentin.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

alice.tech— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

archon.inc— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

artifact.engineer— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

assistant-ui.com— avg · W25——top 500k———Jul 31

Tranco —Radar top 500kCrUX —Majestic —Umbrella —checked Jul 31

astroenergy.airedirected— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain now redirects elsewhere; the rank measures whoever it points at — the homepage redirects to astroenergyco.com, a different site

awen.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

axal.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

bindwell.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

blindpay.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

bud.app— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

butter.dev— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

bystreet.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

calltree.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

candor.security— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

cardamon.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

carecycle.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

caseflood.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

cedarcopilot.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

cifrato.ai— avg · W25———top 1M——Jul 31

Tranco —Radar —CrUX top 1MMajestic —Umbrella —checked Jul 31

closure-intel.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

conntour.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

contrario.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

corsair.dev— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

cuckoo.so— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

dalus.io— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

dartboardenergy.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

delineate.pro— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

dollyglot.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

edexia.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

enhancedradar.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

excellence-ai.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

exintherapeutics.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

exla.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

finbar.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

firaresearch.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

flowtel.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

forgeautomation.caredirected— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain now redirects elsewhere; the rank measures whoever it points at — the homepage redirects to forgejobshop.com, a different site

fromolive.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

fuseai.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

galevisa.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

generaltrajectory.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

getbluebook.comgone— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain is gone; the rank is what it left behind — the homepage returns 404

gethealthkey.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

getrally.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

gettireswing.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

glnkco.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

gokarsa.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

harbera.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

harperinsure.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

heytelo.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

hud.ai— avg · W25——top 1M———Jul 26

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 26

infinite.dev— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

instinct-space.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

inversionsemi.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

joincenote.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

joindex.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

joinergo.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

karoo.ca— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

leapingai.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

lopus.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

lucid.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

lucidic.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

macadamialabs.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

maive.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

maritimefusion.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

mecha-health.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

mentra.glassredirected— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain now redirects elsewhere; the rank measures whoever it points at — the homepage redirects to mentraglass.com, a different site

mercura.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

miyagilabs.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

mosaic.so— avg · W25——top 1M———Jul 26

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 26

mundoai.world— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

nitrode.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

okihome.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

openintake.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

operand.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

optifye.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

orbitalops.tech— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

osmosis.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

outlit.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

outship.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

100

overstandlabs.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

101

ovlo.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

102

paratushealth.org— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

103

pave-robotics.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

104

pax.markets— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

105

permitify.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

106

pickle.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

107

pluto.trade— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

108

praxim.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

109

proception.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

110

promptless.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

111

quantstruct.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

112

rebolt.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

113

redbarnrobotics.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

114

reditus.space— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

115

rejot.dev— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

116

retrofit.shop— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

117

reviserobotics.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

118

roark.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

119

rocketable.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

120

runcopycat.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

121

runparagon.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

122

salespatriot.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

123

sammylabs.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

124

scoutforschools.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

125

sennu.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

126

splash9.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

127

spott.io— avg · W25——top 1M———Jul 31

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 31

128

stampmail.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

129

startpinch.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

130

steinmetzmotors.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

131

stillwind.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

132

subimage.io— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

133

subtrace.dev— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

134

superglue.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

135

tallyhq.comparked— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain is parked; the rank measures the placeholder, not the company — the domain is on namebrightdns.com's nameservers, a domain sale platform

136

tamlabs.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

137

teetimetommy.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

138

tensorpool.dev— avg · W25, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

139

tergle.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

140

toothy.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

141

trainloop.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

142

trimresearch.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

143

tryamby.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

144

trybezel.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

145

tryegress.com— avg · W25, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

146

tryelip.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

147

tryinvo.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

148

trytrata.comredirected— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain now redirects elsewhere; the rank measures whoever it points at — the homepage redirects to trata.com, a different site

149

trytruffle.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

150

tweeks.io— avg · W25——top 1M———Jul 31

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 31

151

uncommontherapeutics.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

152

usecandor.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

153

usemesh.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

154

usepeppr.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

155

usetrava.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

156

verbiflow.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

157

vetnio.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

158

vocalityhealth.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

159

waypointtransit.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

160

weaveos.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

161

wild-card.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

162

withriviera.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

163

wozcode.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

164

you-shift.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

165

zeroentropy.dev— avg · W25——top 1M———Jul 31

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 31

a — means that source hasn't ranked the site; the average uses whichever exact ranks exist

History · every change, public

Jul 31 06:03sync with the YC sync, 7 sites changed

Jul 30 06:02sync with the YC sync, 15 sites changed

Jul 29 06:03sync with the YC sync, 23 sites changed

Jul 28 06:03sync with the YC sync, 9 sites changed

Jul 27 06:02sync with the YC sync, 6 sites shown

This list is kept in step with the official YC API, so it isn't editable here. This is just for fun.